129952040

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{20693}}^1$

素因数の和:20861

約数の個数: 32

約数和(自身を含む): 294268680

約数和(自身を除く): 164316640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 785, 1256, 1570, 3140, 6280, 20693, 41386, 82772, 103465, 165544, 206930, 413860, 827720, 3248801, 6497602, 12995204, 16244005, 25990408, 32488010, 64976020, 129952040]

約数ペア:

[(1, 129952040), (2, 64976020), (4, 32488010), (5, 25990408), (8, 16244005), (10, 12995204), (20, 6497602), (40, 3248801), (157, 827720), (314, 413860), (628, 206930), (785, 165544), (1256, 103465), (1570, 82772), (3140, 41386), (6280, 20693)]